EP0568531A1 - Recipient de cuisson. - Google Patents

Recipient de cuisson.

Info

Publication number
EP0568531A1
EP0568531A1 EP91910045A EP91910045A EP0568531A1 EP 0568531 A1 EP0568531 A1 EP 0568531A1 EP 91910045 A EP91910045 A EP 91910045A EP 91910045 A EP91910045 A EP 91910045A EP 0568531 A1 EP0568531 A1 EP 0568531A1
Authority
EP
European Patent Office
Prior art keywords
lid
cooking vessel
vessel according
edge
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91910045A
Other languages
German (de)
English (en)
Other versions
EP0568531B1 (fr
Inventor
Horst Dipl Ing Schultz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE4017067A external-priority patent/DE4017067A1/de
Application filed by Individual filed Critical Individual
Publication of EP0568531A1 publication Critical patent/EP0568531A1/fr
Application granted granted Critical
Publication of EP0568531B1 publication Critical patent/EP0568531B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
    • A47J27/0804—Locking devices
    • A47J27/0811—Locking devices using a number of pivotable clamps along the circumference of the cooking-vessel
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J45/00—Devices for fastening or gripping kitchen utensils or crockery
    • A47J45/06—Handles for hollow-ware articles
    • A47J45/068—Handles having indicating means, e.g. for temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/912—Cookware, i.e. pots and pans
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/20—Clamps
    • Y10T292/205—Ring
    • Y10T292/212—With expanding or contracting means

Definitions

  • the invention relates to a cooking vessel which has a container with an outwardly angled peripheral container rim and a lid which can be placed on the container, and a closure device with at least one closure member which is arranged on the lid, preferably in the region of the lid rim from an opening position releasing the lid relative to the container about a pivot axis running approximately parallel to the outer edge facing it or to the tangential line of this outer edge of the container edge into a locking position in which it engages under the container edge for the pressure-tight locking of the lid relative to the container.
  • a cooking vessel of this type is known in which individual hook-shaped closure elements pivotably mounted about an axis on the lid can engage under the container rim with their hook-shaped section when the lid is attached. In this way, however, no reliable sealing of the cooking vessel can be achieved.
  • the individual closure members have to be folded over the container wheel in a cumbersome manner. There is no safeguard against opening the container while it is still under pressure.
  • the cooking vessel known from DE-OS 32 32 907 has a cookware container with a peripheral edge and a lid which is divided and consists essentially of a circular hood and a frame which is concentric with this and overlaps the hood to overlap.
  • a cookware container with a peripheral edge and a lid which is divided and consists essentially of a circular hood and a frame which is concentric with this and overlaps the hood to overlap.
  • several clamps are arranged on the lid, evenly distributed over its circumference, which in the closed position encompass the frame and the container rim.
  • a sealing profile is arranged between the frame and the edge of the container.
  • the hood and the frame are tensioned against one another via springs, which are distributed over the circumference of the cover, while the springs simultaneously act axially on the clamps.
  • To open this pressure cooker first press the lid handle from above. The hood can then be pressed down relative to the frame against the force of the springs.
  • the lower legs of the U-shaped clamps detach from the edge of the container.
  • locking members emerge from holes in the frame.
  • the hood can then be turned relative to the frame.
  • the clips move essentially radially outwards and their lower legs come free from the edge of the container, so that the lid can be removed.
  • the locking mechanism is therefore quite complicated parts that require a complex manufacture. Since the clips are parallel to the top surface can only be attacked on the outer edge of the angled pot rim. This results in a large, effective lever arm for attacking the internal vessel pressure. For this reason, pots with a wide rim must be designed to be stable.
  • the object of the invention is to provide a cooking vessel of the type mentioned at the outset which can be opened and closed easily, securely and with little effort, has a simply constructed locking mechanism and is therefore inexpensive to manufacture.
  • closure member is designed as a hollow body with a substantially cylindrical or prismatic wall that runs essentially parallel to the direction of the pivot axis, which wall extends only over part of its circumference and has a locking wall section an opening position is pivotable into a locking position, and that the closure member is mounted on a molded body.
  • the closure member and its pivotable mounting Due to the special design of the closure member and its pivotable mounting, preferably with its pivot axis in the immediate vicinity of the outer edge of the edge of the container, it can pivot around the edge of the container and thereby reach under the container edge far inside, close to the container wall, even if the container edge is angled downwards on the outside. Since no spring forces and no internal vessel pressure and consequently only low frictional forces act on the closure member, the opening and closing operation can be carried out safely and comfortably by the operator with little effort, especially if the molded body is made of a material with a low friction coefficient ⁇ zients, such as plastic, exists.
  • the closure principle according to the invention can be used for round or oval as well as for polygonal, in particular square or rectangular, cooking vessels, whereby different vessel shapes can always be equipped with the same closure members and shaped bodies, only in adaptation to the different outer contour in a different arrangement to one another .
  • the entire closure mechanism with the closure members can be arranged as a unit on the lid and does not interfere with the handling of the container, for example when filling and pouring out the food.
  • the arrangement of the closure members in the region of the lid edge also ensures that - with a corresponding arrangement of the swivel axis - the closure members can engage far below the pot rim with little actuation mechanism for the swivel movement by corresponding degrees of angle.
  • the exact area of attack of the pivotable closure members on the rim of the pot can be determined by the choice of the position of the pivot axis.
  • the design of the closure members also ensures that they can withstand relatively high pressures.
  • part of the surface of the molded body serving as the bearing surface is circular-cylindrical in adaptation to the inner edges of the closure member, only slight actuation forces are required to actuate the closure member in order to open or close the cooking vessel.
  • the bearing surface of the molded body has at least one flattening or indentation which, in the locking position of the locking element, interacts with a correspondingly flat or complementary curved securing wall section of the locking element.
  • the shaped body and the closure member are each dimensioned such that in the locking position of the closure member, the lid can lift off slightly from the container under the pressure built up in the interior of the vessel; the seal of the cover with respect to the container is still ensured by means of an annular seal. In this way it is achieved that the closure element can only be pivoted back into its open position when the internal pressure of the vessel is reduced. This arrangement therefore forms a zero pressure safety device.
  • the sealing of the lid with respect to the container can preferably be ensured by means of a sealing lip of an annular seal arranged on the edge of the vessel, which rests on the container or the lid under the internal pressure of the vessel.
  • the closure mechanism according to the invention can be actuated even more easily if, according to a further feature of the invention, the bearing surface of the molded body for the closure member consists of a material, in particular plastic, with a low coefficient of friction.
  • a single closure member is sufficient, for example, when the lid is articulated on the container on the side opposite the closure member.
  • closure members distributed over the circumference of the rim of the vessel. So that all of the closure members and molded bodies, even if the outer contour of the vessel edge is round or oval, can have the same shape, the closure members are seen in a top view of the lid, preferably arranged in a polygonal fashion in the region of the vessel edge.
  • the closure members can have a more or less large distance from one another, the length of the respective shaped bodies being limited to the length of the closure members.
  • the shaped bodies can, however, also extend beyond the closure members and between them, it being possible in particular to provide for the closure members to be mounted on axially stub axles of the shaped bodies arranged between the closure members.
  • closure members in the manner of a polygon results in particular when the closure members are designed in the manner of a pipe section.
  • the closure members of the closure mechanism according to the invention can run directly parallel to the vessel edge assigned to them. It has been shown that in a cooking vessel with a customary diameter and a round outer contour with twelve closure members arranged in a polygonal course, an almost complete engagement under the rim of the pot can be achieved, with each closure member only partially applying forces during the Use of the cooking vessel.
  • the opening and closing of the cooking vessel according to the invention can be further simplified in that the closure members can be actuated synchronously via a common actuation mechanism.
  • the actuating mechanism has a flexible shaft - following the edge of the vessel - for joint actuation of the closure members.
  • the locking arms actuating driving arms can be attached to the shaft.
  • the shaft is preferably rotatably arranged coaxially to the swivel axis in the shaped bodies.
  • a recess for the pivoting movement of the respective driver arm is provided in each molded body. Because of this special design of the actuating mechanism, it is only necessary to introduce the closing and opening forces at one point into the flexible shaft or into a closure member, since the other closure members are connected to one another via the flexible shaft and there be pivoted by.
  • the opening and closing process can be carried out easily by the operator, in particular when the shaft or at least one of the closure members can be actuated centrally from the upper side of the cover, preferably the cover handle, via, for example, an actuating rod.
  • a simultaneous turning and Pressing as in the known cooking vessel mentioned at the beginning is not necessary.
  • the opening and closing process can take place, for example, by simply moving an actuating lever back and forth or rotating or pressing an actuating button, etc.
  • Another embodiment of the invention provides that an outwardly pointing manual operating lever is attached to the shaft or at least one of the closure members, with which the cooking vessel can be closed and opened directly without any particular effort.
  • the actuating mechanism can be secured against opening of the closure members by means of a locking member which acts as a zero pressure safety device depending on the internal pressure of the vessel, so that the cooking vessel can only be opened when the pressure in the Vessel interior has degraded.
  • This locking element can be designed, for example, as a locking pin which is arranged in the lid and moves up and down under the internal pressure of the vessel or its own weight, which prevents movement of the actuating means for the closure elements into the open position in the locking position.
  • the cooking vessel has actuating means for the closure members, which are actuated by the internal pressure of the vessel building up in the interior of the vessel.
  • the closure members close automatically with the build-up of internal vessel pressure, while then and only then open, if the internal vessel pressure has in any case decreased to a predetermined degree.
  • the actuating means have transmission means which transmit the movement of an inner lid which rises under the internal pressure of the vessel and lowers under its own weight to the closure members or the shaft.
  • the inner pressure of the vessel building up in the container is used to lift the inner lid, as a result of which the inner lid in turn pivots the closure members into the locking position.
  • the inner lid lowers again due to its own weight and, by means of the transmission means, also transmits this movement to the closure members, which thereby automatically pivot into their open position.
  • a simple embodiment of this idea of the invention provides that the transmission means engages at least one, for example, the inner cover and the shaft or at least one of the closure members. have as a wire ring encompassing the inner cover connecting member.
  • a particularly simple and expedient mounting of the connecting member is achieved if, on the one hand, it is firmly connected to the inner cover and engages in a circumferential groove of the inner cover and, on the other hand, rotatably mounted in an eyelet of the closure member.
  • the cover has an outer ring section forming the cover edge, on which the closure members are arranged and in which the inner cover is guided so that it can be moved up and down.
  • the inner cover is preferably guided on the ring section by means of a sealing lip which may have passage openings.
  • the frictional forces exerted by the sealing lip on the inner lid are to be kept lower than those forces with which the ring section is attached to the container by means of a seal, for example by means of a sealing lip which bears against the inner wall of the container and the ring seal which acts between the lid and the container. is held. In this way it is ensured that the inner lid gradually rises relative to the ring section when pressure builds up in the interior of the vessel, while the air in the interior of the vessel at the beginning of the cooking process can be removed from the interior of the vessel via the passage openings which are kept clear, so that the lid can move the lid Function of an aroma valve is fulfilled.
  • the inner cover preferably engages under the ring section with an outwardly angled sealing edge, which only seals the ring section in the uppermost closed position of the inner cover, that is to say with a sufficiently built-up internal pressure in the vessel, possibly with an intermediate layer Ring seal, put on.
  • This ensures a good seal between the ring section and the inner lid, so that steam can no longer escape during cooking, ie when a certain internal vessel pressure is exceeded.
  • the sealing lip with the aid of which the inner cover is guided on the ring section, can preferably form part of the ring seal, which also serves for the sealing edge of the inner cover in the closed position.
  • the ring seal can be arranged interchangeably on the inner edge of the ring section when it is attached to it, which is important for a wearing part of this type.
  • the ring seal preferably has a sealing lip which presses against the inner surface of the container wall under the internal pressure of the vessel, so that the tightness of the cooking vessel is further increased with increasing internal pressure of the vessel.
  • the closure members are overhanged by a cover which runs around the lid.
  • a cover which runs around the lid.
  • Such a hood-like cover also has the essential advantage that when the pressure is released from the cooking vessel under cold water, the water is rejected to the outside.
  • the cover with the lid edge or the ring section forming the lid edge, or a part thereof, can form an independently assembled and disassembled structural unit. This can then be detached from the lid for cleaning purposes and attached to the lid again after cleaning.
  • the lid it is also possible for the lid to have an upper lid which overlaps the closure members and, if appropriate, the inner lid, so that the closure mechanism is practically completely covered from above and the "technical" appearance is removed from the cooking vessel.
  • the shaped bodies can be formed by the edge section of the upper cover itself, which in this case can also consist of plastic, for example.
  • the inner cover interacts with an indicator pin which indicates the position of the inner cover relative to the ring section. In this way, it can also be determined in this case whether the cooking vessel is in the closed or open state.
  • the indicator pin can preferably be mounted so that it can move axially in the lid handle and form a structural unit with the latter.
  • thermometer is arranged in a lid handle provided centrally in the top lid and is passed with an extension through the wall of the top lid and possibly the wall of the inner lid to the interior of the vessel. In this way it is possible to bypass the vent at the highest point of the lid and past the thermometer, which ensures better heat transfer and reliable temperature measurement.
  • the extension is preferably slidably mounted in the wall of the inner cover.
  • the lid handle carries a circumferential ring seal on its underside, against which the wall of the inner lid bears sealingly in its closed position. That way ensure that the space between the lid handle and the inner lid is sealed to the outside in the closed position.
  • a guide bushing for the extension is preferably arranged in the wall of the inner cover while maintaining a ventilation gap and the guide bushing has an inner shoulder against which the extension lies sealingly when the inner cover is in the closed position.
  • the extension is guided through the wall of the inner cover while maintaining a ventilation gap and that the cover handle on its underside carries an annular seal directly surrounding the extension, against which the wall of the inner cover is located the closure position of which seals.
  • the lid handle for example, can be rotatably held on the wall of the upper lid, projecting over an evaporation valve, and can have an actuation curve by means of which the closure body of the evaporation valve can be transferred from its closed position into an open position by rotating the lid handle .
  • the lid handle in the area of the evaporation valve preferably has an outlet opening which deflects the steam escaping through the evaporation valve to the side, so that the operator does not burn his hand on the escaping steam when the evaporation valve is actuated by turning the lid handle.
  • the evaporation valve itself can, for example, be arranged in the wall of the inner cover and thus be protected.
  • FIG. 1a, b schematically a sectional view of a locking mechanism according to an embodiment of the invention, cut perpendicular to the pivot axis of the locking members, namely FIG. 1a in the open position and in FIG. 1b in the locking position of the locking members,
  • FIGS. 1a and 1b representations corresponding to FIGS. 1a and 1b for another embodiment of the invention
  • FIG. 5 shows an embodiment of the invention in which the locking mechanism can be actuated from the cover
  • FIGS. 6a representations similar to FIGS. 1a and 1b for an embodiment of the invention in which the closing and opening of the closure mechanism takes place automatically depending on the internal pressure of the vessel
  • FIGS. 6a and 6b are plan views of a cooking vessel according to the invention corresponding to the embodiment of FIGS. 6a and 6b, partially broken away and with the top lid removed,
  • FIG. 6d shows a complete vertical section through a cooking vessel according to the invention according to the embodiment shown in FIGS. 6a to 6c with a specially designed lid handle
  • FIG. 7 shows a representation corresponding to FIG. 7 but for yet another embodiment of the invention.
  • the cooking vessel shown in sections in FIGS. 1a and 1b has a container 1 open at the top, for example in the form of a pot, pan or pan, for holding items to be cooked, with a container edge 2 which is angled outwards and downwards.
  • a lid 3 with a lid rim 7 can be placed on the container rim 2.
  • a ring seal 26, which is essentially U-shaped in cross section, is attached to the lid edge 7.
  • the push-on area of the lid edge 7 is of this type angled downward so that the top of the ring seal 26 is flush with the top of the adjoining area of the lid edge 7.
  • the lower leg of the ring seal 26, which comes to lie between the container rim 2 and the lid rim 7, extends into a sealing lip 28 which is pressed against the upper side of the container rim 2 under the pressure prevailing in the interior 15 of the vessel.
  • the cooking vessel is equipped with a closure device which has a number of closure members 4 distributed at uniform intervals over the circumference of the vessel.
  • the closure members 4 are arranged in the region of the lid edge 7 and are from an open position (FIG. 1a) releasing the lid 3 relative to the container 1 by an approximately parallel to the outer edge 5 facing it or to the tangent of this outer edge 5 of the Container edge 2 extending pivot axis S can be pivoted into a locking position (FIG. 1b) in which the closure member 4 engages under the container edge 2 for the pressure-tight locking of the cover 3 with respect to the container 2.
  • the pivot axis S lies somewhat above the lid edge 7 approximately in the area of the outer edge thereof.
  • the position of the pivot axis S is determined in each case by a molded body 6 made of plastic or another material with a low coefficient of friction, on which the respective closure member 4 is pivotally mounted.
  • the closure member 4 is designed as a hollow body cut out over its part of its circumference, the circular cylindrical wall of which runs essentially parallel to the pivot axis S.
  • the one part of the circumferential wall delimiting the cutout of the hollow body forms a locking wall section 13 which, from the opening position shown in FIG. 1a, in which the end of this locking wall section 13 lies outside the circumference of the container edge 2, into a locking position according to FIG. 1b is pivotable in which the outer end of the locking wall section 13 abuts the underside of the container edge 2.
  • the molded body 6 is provided with a recess 23, which is arranged and dimensioned such that the surface 23 of the molded body 6, which delimits the recess 23 at the top, rests on the upper leg of the ring seal 26 and the inwardly adjoining part of the lid edge 7, while the Recess 23 area delimiting the outside against the ring seal 26.
  • the recess 23 is open towards the bottom.
  • the recess 23 is dimensioned in terms of its width and height in such a way that when the cover 3 is placed on the container 1, the cover edge 7 and the container edge 2 including the ring seal 26 are received by it and the locking wall section 13 undisturbed under the Container edge 2 is pivotable.
  • the shaped bodies 6 with the closure members 4 mounted thereon are fastened to the lid edge 7 in a manner not shown in detail.
  • the closure members 4 Seen in plan view, the closure members 4 have the shape of a tube section.
  • the closure members 4 and the molded bodies 6 each consist of straight sections that are identical to one another and, as a result, form a polygon in a plan view of a cover 3 or cover edge 7 that is round in circumference.
  • FIGS. 2a and 2b differs from that shown in FIGS. 1a and 1b only in that the closure members 4 are not circular cylindrical in cross section but polygonal.
  • the closure members 4 thus have a prismatic wall with wall regions likewise extending essentially parallel to the pivot axis S.
  • the wall is recessed over part of its circumference, so that the locking wall section 13 can be moved from the open position shown in FIG. 2a into the locking position shown in FIG. 2b by pivoting.
  • the bearing surface 31 of the molded body 6 is also circular cylindrical here. It interacts with the individual wall sections of the closure members 4.
  • the closure members 4 have a prismatic, in the case shown a cross-sectionally essentially square shape.
  • the bearing surface 31 of the molded body 6 is not completely circular-cylindrical, but has a flattening 32 at an angle of 45 ° to the horizontal at a distance of 90 °. This has the consequence that the longitudinal axis of the closure member 4 causes in Fig. 3a ⁇ clear opening position is slightly higher than in the locking position shown in Fig. 3b.
  • FIG. 3b It can also be seen from the geometrical relationships of FIG. 3b that the closure members 4 can no longer be pivoted back into their open position of FIG. 3a under such an internal vessel pressure. This would only be possible by overcoming the inner vessel pressure, ie by slightly compressing the container 1 and the lid 3.
  • the embodiment according to FIGS. 3a and 3b thus represents a zero pressure safety device.
  • closure members 4 are again essentially circular cylindrical. In their locking position, however, they each have inwardly curved securing wall sections 33 at a distance of 45 ° from the horizontal and offset by 90 ° to one another, which can snap into correspondingly arranged indentations 32 of the molded body 6 in the locking position shown in FIG. 4b. This also achieves zero pressure protection in the manner explained above.
  • the closure members 4 can be actuated synchronously via a common actuation mechanism.
  • the actuating mechanism has a flexible shaft 8 following the edge of the vessel.
  • the shaft 8 is received in the shaped bodies 6 in such a way that its axis of rotation coincides with the pivot axis S of the closure members 4.
  • the shaft 8 has essentially radial driver arms 9 for actuating supply of the individual locking members 4.
  • the driver arms 9 engage in openings 29 of the locking members 4.
  • Each molded body 6 is provided with a slot-shaped recess 10 for pivoting the driving arms 9.
  • a pivot lever 12 is fastened to the shaft 8 or to at least one closure member 4, which engages with actuating means 11 designed as an actuating rod in the exemplary embodiment shown.
  • the actuating rod is guided to the center of the cover 3, for example to a cover handle provided there, from where it can be moved back and forth by the operator in the direction indicated by the arrow in such a way that all the closure members 4 together in their illustrated open position or in their Lock position shown in dash-dotted lines can be pivoted.
  • the closure members 4 are overhanged by a cover 36 encircling the cover 3.
  • a pin-shaped locking member 35 can be moved up and down under the internal pressure of the vessel or its own weight.
  • the movement of the actuating means 11 is not hindered. Due to the pressure build-up in the interior 15 of the vessel, the blocking member 35 rises until it seals with a sealing ring 54 against the end face of a guide sleeve 55 arranged in the wall of the lid 3. In this locked position, the locking member 35, as indicated by dashed lines, hinders the movement of the actuating means 11, so that the locking mechanism is prevented from opening when the internal pressure prevails in the cooking vessel.
  • the lid edge 7 is designed as a ring element that is independent of the lid body. He can along with those attached to him Shaped bodies 6, the locking members 4 mounted thereon, including the flexible shaft 8, the driving arms 9 and the pivoting lever 12 and the cover 36, can be designed as an independently assembled and removable unit.
  • the body of the cover 3 has an outwardly angled edge flange 56, on which the cross-sectionally U-shaped ring seal 22 is attached.
  • the upper leg of the ring seal 22 lies between the edge flange 56 and the attached cover edge 7.
  • a sealing lip 30 of the ring seal 22, which points vertically downwards, is pressed against the container wall 24 by the internal pressure of the vessel.
  • the cover 3 is subdivided into an annular section 20 forming the cover edge 7 and an inner cover 19 which increases under internal pressure and decreases its own weight.
  • the closure members 4 are arranged by means of shaped bodies 6 on the lid edge 7. To hold the molded bodies 6, they are attached with a slot 57 to upwardly bent edge sections 58 of the lid edge 7.
  • the inner cover 19 is guided by means of a sealing lip 37 on the ring section 20, which is provided at intervals with passage openings 38.
  • the sealing lip 37 forms part of the ring seal 22 which, in the closed position, also serves to abut a sealing edge 31 of the inner cover 19 which is bent outwards at the lower end.
  • the frictional forces acting between the sealing lip 37 and the outer surface of the inner cover 19 are lower than the frictional forces with which the ring section 20 is held on the container 1 by means of the ring seal 22 above the sealing lip 25. Therefore, the inner lid 19 can rise relative to the ring section 20 when the internal pressure of the vessel rises.
  • the passage openings 38 are dimensioned so small that although the air to be displaced from the interior 15 of the vessel can escape when the pressure rises, on the other hand a sufficient pressure builds up which Lids 19 so far until it assumes its closed position shown in Fig. 6b, in which the sealing edge 21 abuts the sealing lip 37.
  • the ring seal 22 is attached to an outwardly bent edge section 59 of the ring section 20.
  • actuating means 14 are provided for the closure members 4, which are actuated by the internal pressure of the vessel building up in the interior 15 of the vessel.
  • the up and down movement of the inner cover 19 is namely transmitted by transmission means 16 to at least one of the closure members 4 or the shaft 8.
  • the transmission means 16 have, as a connecting element, a wire ring which engages on the inner cover 19 and the shaft 8 or on at least one of the closure members 4 and surrounds the inner cover 19, as can be seen from FIG. 6c.
  • the transmission means 16 designed as a wire ring is on the one hand firmly connected to the inner cover 19 in a circumferential groove 17 of the inner cover 19 and on the other hand rotatably mounted in an eyelet 18 of the closure member 4.
  • the inner cover 19 takes the closure members 4 with them when the pressure rises and pivots them out of the open position into the locking position.
  • the closure members 4 automatically pivot back out of the locking position into the open position, so that the lid 3 can easily be removed from the container 1 again.
  • FIGS. 6a and 6b the inner cover 19 and the ring section 20 with the closing mechanism including the closing members 4 are covered by an upper cover 34 connected to the ring section 20.
  • an upper cover 34 connected to the ring section 20.
  • a lid handle 40 is rotatably mounted in a central recess 60 of the upper lid 34.
  • an indicator pin 39 is arranged so that when the inner lid 19 is moved into the upper closed position, it is axially displaced from a lower rest position into an upper display position.
  • thermometer 41 is arranged in a central recess 42 of the lid handle 40 and is fixed in the wall of the upper lid 34 with a lower, sleeve-shaped extension 44 made of metal or another highly thermally conductive material.
  • the bottom of the recess 42 is formed in its central region by an upper flange section 43 of the extension 44.
  • the extension 44 projects with its lower end, while maintaining a ventilation gap 53, into a guide bush 50 received in a central recess in the wall of the inner cover 19.
  • the extension 44 Since the extension 44 is sleeve-shaped, the interior of the extension 44 is in flow connection with it the vessel interior 15, whereby a favorable heat transfer is achieved. Good heat transfer is further ensured by the fact that the air rising when the cooking vessel heats up can flow out through the annular gap 53 past the extension 44 until the inner cover 19 reaches its upper closed position and the lower end face of the Extension 44 comes to rest on a sealing ring 61 which is received on an inner shoulder 51 of the guide bush 50. As a result, a further outflow of air or steam is also prevented there as soon as the sealing edge 21 comes into contact with the sealing lip 37.
  • the lid handle 40 carries on a downward-pointing Ring section 62 has a circumferential ring seal 49 which, in the closed position of the inner cover 19, seals against the upper side thereof.
  • An evaporation valve 45 is arranged in the wall of the inner cover 19 within the circumferential ring seal 49.
  • the rotatably mounted lid handle 40 has an actuation curve 46 assigned to the exhaust valve 45, by means of which the lid body 40 of the exhaust valve 45 can be moved from a closed position into an open position by rotating the lid handle 40 when the inner lid 19 is in its upper closed position.
  • the steam escaping from the evaporation valve 45 can escape to the side through a lateral outlet opening 48, so that the operator's hand, which grips the lid handle 40, does not come into contact with the steam.
  • the upper cover 34 itself forms the molded body 6 on its outer edge.
  • the upper cover 34 including the molded body 6 can be made of plastic.
  • this embodiment of the invention according to FIG. 7 differs from that shown in FIG. 6c only in the area of the thermometer bushing from the lid handle 40a .
  • the extension 44 projects through the wall of the inner cover 19 while keeping a ventilation gap 53 clear.
  • an annular seal 52 is provided which immediately surrounds the extension 44, so that the ventilation gap 53 is sealed by the annular seal 52 in the upper closed position of the inner lid 19.
  • the extension 44 projects into the interior 15 of the vessel and when the air rises, the rising air passes the extension 44 and because the ventilation gap 53 is arranged in the center, thereby virtually completely expelling the rising air until the steam emerges can be a reliable temperature measurement.

Abstract

Un récipient de cuisson comprend un conteneur (1) ayant un bord (2) continu replié vers l'extérieur, un couvercle (3) qui peut être posé sur le conteneur et un dispositif de fermeture avec au moins un organe de fermeture (4) placé sur le couvercle, de préférence dans la région du bord (7) du couvercle. L'organe de fermeture est pivotable entre une position d'ouverture qui libère le couvercle par rapport au conteneur et une position de verrouillage, autour d'un axe de pivotement (5) approximativement parallèle au bord extérieur qui lui fait face ou aux tangentes du bord extérieur du conteneur. Dans la position de verrouillage, l'organe de fermeture accroche le bord du conteneur, verrouillant de manière étanche à la pression le couvercle par rapport au conteneur. L'organe de fermeture est formé par un corps creux avec une paroi essentiellement cylindrique ou prismatique essentiellement parallèle à l'axe de pivotement, cette paroi ne s'étendant que sur une partie de sa circonférence et pouvant pivoter avec une section de verrouillage entre une position d'ouverture et une position de verrouillage. L'organe de fermeture repose sur un corps moulé (6).
EP91910045A 1990-05-26 1991-05-24 Recipient de cuisson Expired - Lifetime EP0568531B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4017067A DE4017067A1 (de) 1990-05-26 1990-05-26 Kochgefaess
DE4017067 1990-05-26
PCT/EP1991/000965 WO1991018543A2 (fr) 1990-05-26 1991-05-24 Recipient de cuisson

Publications (2)

Publication Number Publication Date
EP0568531A1 true EP0568531A1 (fr) 1993-11-10
EP0568531B1 EP0568531B1 (fr) 1995-01-11

Family

ID=6407293

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EP91910045A Expired - Lifetime EP0568531B1 (fr) 1990-05-26 1991-05-24 Recipient de cuisson

Country Status (26)

Country Link
US (1) US5293813A (fr)
EP (1) EP0568531B1 (fr)
JP (1) JP2754284B2 (fr)
KR (1) KR0181712B1 (fr)
CN (1) CN1029585C (fr)
AT (1) ATE116823T1 (fr)
AU (1) AU7894091A (fr)
BR (1) BR9106478A (fr)
CA (1) CA2083718C (fr)
CZ (1) CZ280338B6 (fr)
DE (1) DE59104274D1 (fr)
DK (1) DK0568531T3 (fr)
ES (1) ES2047472T3 (fr)
GR (2) GR940300012T1 (fr)
HR (1) HRP940662B1 (fr)
HU (1) HU212405B (fr)
MX (1) MX173794B (fr)
PL (1) PL165815B1 (fr)
PT (1) PT97760B (fr)
RU (1) RU2066543C1 (fr)
SK (1) SK280018B6 (fr)
TR (1) TR25818A (fr)
UA (1) UA26184C2 (fr)
WO (1) WO1991018543A2 (fr)
YU (1) YU47891B (fr)
ZA (1) ZA913948B (fr)

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WO2011003698A1 (fr) 2009-07-08 2011-01-13 Menfi Industria S.P.A. Autocuiseur pourvu d'un dispositif de sécurité supplémentaire contre le danger d'explosion dû à la surpression
WO2013010849A1 (fr) 2011-07-21 2013-01-24 Menfi Industria S.P.A. Dispositif de sécurité anti-explosion, pouvant être utilisé avec des couvercles d'appareils de cuisson sous pression

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WO2011003698A1 (fr) 2009-07-08 2011-01-13 Menfi Industria S.P.A. Autocuiseur pourvu d'un dispositif de sécurité supplémentaire contre le danger d'explosion dû à la surpression
WO2013010849A1 (fr) 2011-07-21 2013-01-24 Menfi Industria S.P.A. Dispositif de sécurité anti-explosion, pouvant être utilisé avec des couvercles d'appareils de cuisson sous pression

Also Published As

Publication number Publication date
HRP940662A2 (en) 1996-06-30
BR9106478A (pt) 1993-05-25
PT97760B (pt) 1998-12-31
CZ280338B6 (cs) 1995-12-13
EP0568531B1 (fr) 1995-01-11
GR940300012T1 (en) 1994-03-31
HU9203517D0 (en) 1993-01-28
YU92891A (sh) 1994-06-10
ES2047472T3 (es) 1995-05-16
US5293813A (en) 1994-03-15
DK0568531T3 (da) 1995-06-26
ES2047472T1 (es) 1994-03-01
MX173794B (es) 1994-03-28
WO1991018543A2 (fr) 1991-12-12
PT97760A (pt) 1993-07-30
TR25818A (tr) 1993-09-01
JP2754284B2 (ja) 1998-05-20
DE59104274D1 (de) 1995-02-23
AU7894091A (en) 1991-12-31
CA2083718C (fr) 1997-08-26
KR0181712B1 (ko) 1999-03-20
HUT64808A (en) 1994-03-28
WO1991018543A3 (fr) 1992-04-16
CS156791A3 (en) 1992-01-15
SK280018B6 (sk) 1999-07-12
PL165815B1 (pl) 1995-02-28
CN1057771A (zh) 1992-01-15
UA26184C2 (uk) 1999-06-07
HRP940662B1 (en) 1998-08-31
ZA913948B (en) 1992-04-29
GR3015655T3 (en) 1995-07-31
HU212405B (en) 1996-06-28
CN1029585C (zh) 1995-08-30
CA2083718A1 (fr) 1991-11-27
RU2066543C1 (ru) 1996-09-20
JPH05506380A (ja) 1993-09-22
YU47891B (sh) 1996-05-20
ATE116823T1 (de) 1995-01-15

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